It does depend on the actual task you are going for, but I have been using https://smartproxy.io/ for a while and they seem legit. High pool and does not limit nor threads nor activities. Suited my needs. Ah, and quite cheap actually.
You can have both functional and fun. Dealing with cancer is a medication, but without a smile, you are pretty much only living on the medicational path.
In some cases, 30 meters is the most you can get. Sometimes flapping your hands is the most you can do. Moving is the point, no matter the distance I guess. :D